Data Communication and Networking MCQs

16.

LAN is useful for __________.

   A.) railway 
   B.) bank 
   C.) businessman 
   D.) transport 

Answer: Option 'C'

​businessman 

17.

Modulation is _______.

   A.) varying of some parameter of a carrier, such as its amplitude to transmit information.
   B.) utilization of a single transmission channel to carrying multiple signals.
   C.) transmission of pulses in DC form over a copper wire.
   D.) None of these.

Answer: Option 'A'

​varying of some parameter of a carrier, such as its amplitude to transmit information.

18.

The first computer network of the world is __________.

   A.) I net
   B.) NSF net
   C.) Arpanet
   D.) V net

Answer: Option 'C'

​Arpanet

19.

A central computer surrounded by one or more satellite computers is called.

   A.) bus network
   B.) ring network
   C.) star network
   D.) none of these

Answer: Option 'C'

star network

20.

The basic component necessary for communication is a ________.

   A.) computer terminal
   B.) modem
   C.) communications software
   D.) all of these

Answer: Option 'C'

communications software

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